Finite Group Databasebeta
Cayley diagram

#21109

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) = C213 (order 8192) · Inn(G) = C24 · Out(G) = C29
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutator, socleC23C23×C4
prime radicalC22×D4C2×C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

457 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 28 points:

(1,2)(3,4)(5,6)(7,10)(8,9)(11,12)(13,14,17,21,18,15,19,23)(16,20,25,27,24,22,26,28);(6,9)(10,12)(13,15,17,23,18,14,19,21)(16,22,25,28,24,20,26,27);(2,4)(13,16)(14,20)(15,22)(17,25)(18,24)(19,26)(21,27)(23,28);(5,7,8,11)(6,10,9,12)(16,24)(20,22)(25,26)(27,28)

Polycyclic presentation:

2^8|a^2=g,b^2=g,d^2=e,g^2=h,b^a=be,c^a=cf,d^c=dh

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#21109, #6371728, #6371732, …
maximal normal subgroup ofC2×#21109, #6371728, #6371732, …
maximal quotient of#203368, #203369, #203370, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14097);